<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div class="app">
        <ul>
            <li v-for="(item,index) in list">{{item}}</li>
        </ul>
        <button @click="fun1">走一走</button>
    </div>
    <script src="../vue.js"></script>
    <script>
        const app = new Vue({
            el:".app",
            data:{
                list:["帅哥","美女","程序猿"]
            },
            methods:{
                // fun1(){
                //     this.list=[this.list[this.list.length-1],this.list[this.list.length-3],this.list[this.list.length-2]]
                // }
                fun1(){
                    this.list.push(this.list.shift())
                }
            }
        })
    </script>
    </script>
</body>
</html>